– 1 lb raw tuna, any species – 1/4 cup soy sauce – 1/4 cup fresh orange juice, about 1 orange – 2 tbsp fresh lime juice, about 1 lime – 2 tbsp fresh lemon juice, about 1/2 lemon – 1 tbsp sesame oil – 1 tbsp ponzu sauce, can replace with soy sauce – 1 tsp crushed red pepper – 1 tsp garlic powder – 1/2 tsp kosher salt – 1/4 cup sesame seeds – 1 tsp garlic powder – 1 tbsp sesame oil – 1/4 cup sliced green onions, green part only – soy sauce, for dipping